A negative pressure adsorption system experimental device

Abstract

The utility model relates to a kind of negative pressure adsorption system experimental device, including supporting device, adsorption device, regulation and control device and measuring device;The supporting device includes support frame, aluminium plate, pressure sensor, simulation wall surface;Adsorption device includes centrifugal impeller, negative pressure cavity, impeller cover and sealing mechanism;Regulation and control device includes brushless high-speed motor, controller, potentiometer knob, tachometer and direct current power supply;Measuring device includes thermal anemometer, vernier caliper and differential pressure sensor.The utility model aims at measuring adsorption system adsorption force, pressure and flow.

Description

Technical Field

[0001] This utility model belongs to the field of fluid mechanics technology, and specifically relates to an experimental device for a negative pressure adsorption system. Background Technology

[0002] Negative pressure adsorption technology has a wide range of applications in industrial production and scientific research, such as in wall-climbing robots, material grasping and transfer, precision assembly of electronic components, and auxiliary processing of aircraft parts. Among these applications, the negative pressure adsorption system, as a core component, makes the testing of its performance particularly important.

[0003] Existing measuring equipment is susceptible to environmental factors when measuring adsorption force, resulting in large deviations in measurement results. When measuring flow rate and pressure, due to poor compatibility between the measuring instruments and the actual system, it is difficult to obtain accurate data under complex working conditions, and the data cannot truly reflect the internal fluid dynamic characteristics of the system.

[0004] In summary, this utility model patent proposes an experimental device for a negative pressure adsorption system, aiming to provide an experimental device that is easy to build and operate, capable of accurately measuring the performance parameters of the negative pressure adsorption system itself, and promoting the optimization and upgrading of negative pressure adsorption technology. Utility Model Content

[0005] To address the aforementioned technical problems, the purpose of this invention is to measure the adsorption force, flow rate, and pressure of a negative pressure system. The specific steps include constructing a support platform, installing the negative pressure adsorption system, connecting components such as the centrifugal impeller and motor, completing the wiring connections, and measuring the adsorption force, flow rate, and pressure of the negative pressure adsorption system.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An experimental apparatus for a negative pressure adsorption system, characterized in that it includes a support device 1, an adsorption device 2, a control device 3, and a measuring device 4.

[0008] The support device 1 includes a support frame 5, an aluminum plate 6, a pressure sensor 7, and a simulated wall surface 8;

[0009] The support frame 5 of the support device 1 is constructed with aluminum profiles, the aluminum plate 6 is fixed to the support frame 5 by bolts, the pressure sensor 7 is fixed to the aluminum plate 6 by bolts, and the simulated wall surface 8 is connected to the pressure sensor 7 by bolts.

[0010] The adsorption device 2 includes a sealing mechanism 9, a negative pressure chamber 10, a centrifugal impeller 11, and an impeller cover 12;

[0011] The sealing mechanism 9 of the adsorption device 2 is fixed to the negative pressure chamber 10, which is fixed to the simulated wall 8 by bolts. The centrifugal impeller 11 is located inside the impeller cover 12, which is fixed to the negative pressure chamber 10 by bolts. The specified speed is achieved by the regulating device 3, generating negative pressure in the negative pressure chamber 10, which generates a downward adsorption force on the negative pressure chamber 10, completing the adsorption and recording the reading of the pressure sensor 7.

[0012] The control device 3 includes a brushless high-speed motor 13, a driver 14, a tachometer 15, a potentiometer knob 16, and a DC power supply 17.

[0013] The brushless high-speed motor 13 of the control device 3 is fixed to the impeller cover 12 by bolts. The power cord of the brushless high-speed motor 13 is connected to the driver 14, the tachometer 15 is connected to the driver 14, the potentiometer knob 16 is connected to the driver 14, and the driver 14 is connected to the DC power supply 17.

[0014] The measuring device 4 includes a thermal anemometer 18, a vernier caliper 19, a pressure guide nozzle 20, an air tube 21, and a differential pressure sensor 22.

[0015] When the centrifugal impeller 11 reaches the rated speed, the thermal anemometer 18 measures and records the volumetric flow rate at the outlet of the negative pressure adsorption system, the vernier caliper 19 measures the distance between the simulated wall 8 and the fixed surface of the negative pressure chamber 10, and continuously adjusts the distance, recording it as the gap height. The pressure guide nozzle 20 is fixed at the center of the simulated wall 8, the air pipe 21 is connected to the pressure guide nozzle 20, and the differential pressure sensor 22 is connected to the air pipe 21.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention relates to an experimental apparatus for a negative pressure adsorption system, which provides a systematic measurement method. It utilizes various instruments to accurately measure the adsorption force, flow rate, and pressure of the negative pressure adsorption system. The impeller speed and the height of the sealing mechanism can be adjusted to understand their relationship with the measurement target. Furthermore, the experimental equipment is readily available, the platform is rationally constructed, the operating procedures are detailed, and the apparatus is highly repeatable and operable. Compared to complex and expensive existing technologies, it is easier to promote and apply, and it is of great significance for the verification of negative pressure systems. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the negative pressure adsorption experimental platform of this utility model;

[0019] Figure 2 This is a schematic diagram showing the installation positions of the components of the negative pressure adsorption experimental device of this utility model.

[0020] The reference numerals in the attached figures are:

[0021] 1-Support device;

[0022] 2-Adsorption device;

[0023] 3-Control device;

[0024] 4-Measuring device;

[0025] 5-Support frame;

[0026] 6-Aluminum sheet;

[0027] 7-Pressure sensor;

[0028] 8-Simulated wall surface;

[0029] 9-Sealing mechanism;

[0030] 10 - Negative pressure chamber;

[0031] 11-Centrifugal impeller;

[0032] 12-Impeller shroud;

[0033] 13-Brushless high-speed motor;

[0034] 14-Drive;

[0035] 15-Tachometer;

[0036] 16- Potentiometer knob;

[0037] 17-DC power supply;

[0038] 18-Thermal anemometer;

[0039] 19-Vernier calipers;

[0040] 20-Pressure guide nozzle;

[0041] 21-Trachea;

[0042] 22 - Differential pressure sensor. Detailed Implementation

[0043] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0044] like Figure 1 As shown, an experimental apparatus for a negative pressure adsorption system includes a support device 1, an adsorption device 2, a measuring device 4, and a control device 3.

[0045] The support device 1 is located below the adsorption device 2, and the control device 3 and the measuring device 4 are located on the side of the experimental device.

[0046] like Figure 2 As shown, the support device 1 includes a support frame 5, an aluminum plate 6, a pressure sensor 7, and a simulated wall surface 8;

[0047] The support frame 5 of the support device 1 is constructed with aluminum profiles, the aluminum plate 6 is fixed to the support frame 5 by bolts, the pressure sensor 7 is fixed to the aluminum plate 6 by bolts, and the simulated wall surface 8 is connected to the pressure sensor 7 by bolts.

[0048] The adsorption device 2 includes a sealing mechanism 9, a negative pressure chamber 10, a centrifugal impeller 11, and an impeller cover 12.

[0049] The sealing mechanism 9 of the adsorption device 2 is fixed to the negative pressure chamber 10, which is fixed to the simulated wall 8 by bolts. The centrifugal impeller 11 is located inside the impeller cover 12, which is fixed to the negative pressure chamber 10 by bolts.

[0050] The control device 3 includes a brushless high-speed motor 13, a driver 14, a tachometer 15, a potentiometer knob 16, and a DC power supply 17.

[0051] The brushless high-speed motor 13 of the control device 3 is fixed to the impeller cover 12 by bolts. The power cord of the brushless high-speed motor 13 is connected to the driver 14, the tachometer 15 is connected to the driver 14, the potentiometer knob 16 is connected to the driver 14, and the driver 14 is connected to the DC power supply 17.

[0052] The measuring device 4 includes a thermal anemometer 18, a vernier caliper 19, a pressure guide nozzle 20, an air tube 21, and a differential pressure sensor 22.

[0053] The thermal anemometer 18 of the measuring device 4 measures the volumetric flow rate at the air outlet of the negative pressure adsorption system. The vernier caliper 19 measures the distance between the simulated wall 8 and the fixed surface of the negative pressure chamber 10. The distance is continuously adjusted and recorded as the gap height. The pressure guide nozzle 20 is fixed at the center of the simulated wall 8. The air pipe 21 is connected to the pressure guide nozzle 20. The differential pressure sensor 22 is connected to the air pipe 21. The reading of the differential pressure sensor is the pressure of the adsorption system.

[0054] The working process of this utility model is as follows:

[0055] The experimental apparatus for the negative pressure adsorption system of this utility model first completes the construction of the support platform. A support frame 5 is built using aluminum profiles. An aluminum plate 6 is fixed to the support frame 5 by bolts. A pressure sensor 7 is fixed to the aluminum plate 6 by bolts. A simulated wall 8 is connected to the pressure sensor 7 by bolts. A pressure guide nozzle 20 is fixed at the center of the simulated wall 8. A gas pipe 21 is connected to the pressure guide nozzle 20. A differential pressure sensor 22 is connected to the gas pipe 21. A centrifugal impeller 11 is connected to a brushless high-speed motor 13 by a clamp. The brushless high-speed motor 13 is fixed to the impeller cover 12 by bolts. The impeller cover 12 is fixed to the negative pressure chamber 10. The power cord of the brushless high-speed motor 13 is connected to the driver 14. A tachometer 15 is connected to the driver 14. A potentiometer knob 16 is connected to the driver 14. The driver 14 is connected to a DC power supply 17.

[0056] To measure the adsorption force, turn on pressure sensor 7. The pressure sensor displays the initial value. Turn on the DC power switch and rotate the potentiometer knob until the centrifugal impeller reaches the rated speed. The pressure sensor displays the experimental value. Subtract the initial value from the experimental value to obtain the adsorption force.

[0057] To measure the impeller efficiency, after the centrifugal impeller reaches its rated speed, use a differential pressure sensor to measure and record the pressure difference inside and outside the negative pressure chamber, and use a thermal anemometer 18 to measure and record the volumetric flow rate at the air outlet of the impeller cover 12. Take the average value after multiple measurements to complete the experiment and turn off the power.

Claims

1. An experimental apparatus for a negative pressure adsorption system, characterized in that, It includes a support device (1), an adsorption device (2), a control device (3), and a measuring device (4); The support device (1) includes a support frame (5), an aluminum plate (6), a pressure sensor (7), and a simulated wall surface (8); The support frame (5) of the support device (1) is built with aluminum profiles, and the aluminum plate (6) is fixed on the support frame (5) by bolts. The pressure sensor (7) is fixed on the aluminum plate (6), and the simulated wall surface (8) is connected to the pressure sensor (7). The adsorption device (2) includes a sealing mechanism (9), a negative pressure chamber (10), an impeller cover centrifugal impeller (11), and an impeller cover (12); The sealing mechanism (9) of the adsorption device (2) is fixed on the negative pressure chamber (10), the negative pressure chamber (10) is fixed on the simulated wall (8), the centrifugal impeller (11) is located inside the impeller cover (12), and the impeller cover (12) is fixed on the negative pressure chamber (10); The control device (3) includes a brushless high-speed motor (13), a driver (14), a tachometer (15), a potentiometer knob (16), and a DC power supply (17); The brushless high-speed motor (13) of the control device (3) is fixed on the impeller cover (12). The power cord of the brushless high-speed motor (13) is connected to the driver (14), the tachometer (15) is connected to the driver (14), the potentiometer knob (16) is connected to the driver (14), and the driver (14) is connected to the DC power supply (17). The measuring device (4) includes a thermal anemometer (18), a vernier caliper (19), a pressure guide nozzle (20), an air tube (21), and a differential pressure sensor (22); The thermal anemometer (18) of the measuring device (4) measures the volumetric flow rate at the air outlet, the vernier caliper (19) measures the distance between the simulated wall (8) and the fixed surface of the negative pressure chamber (10), the pressure guide nozzle (20) is fixed at the center of the simulated wall (8), the air tube (21) is connected to the pressure guide nozzle (20), and the differential pressure sensor (22) is connected to the air tube (21).

2. The experimental apparatus for the negative pressure adsorption system according to claim 1, characterized in that, The pressure sensor (7) of the support device (1) is fixed to the aluminum plate (6) by bolts, and the simulated wall surface (8) is connected to the pressure sensor (7) by bolts.

3. The experimental apparatus for the negative pressure adsorption system according to claim 1, characterized in that, The brushless high-speed motor (13) of the control device (3) is connected to the centrifugal impeller (11) through a clamp, driving the centrifugal impeller (11) to rotate at high speed, thereby realizing the adsorption function.

4. The experimental apparatus for the negative pressure adsorption system according to claim 1, characterized in that, The thermal anemometer (18) of the measuring device (4) is located at the air outlet of the impeller cover (12) to measure the volumetric flow rate.

5. The experimental apparatus for the negative pressure adsorption system according to claim 1, characterized in that, The pressure guide nozzle (20) of the measuring device (4) is fixed at the center of the simulated wall (8), the air tube (21) is connected to the pressure guide nozzle (20), and the differential pressure sensor (22) is connected to the air tube (21), thereby measuring the total differential pressure in the negative pressure chamber.

Images